20916819

素因数分解:

$3^3\times 7^1\times {\mathrm{11}}^1\times {\mathrm{10061}}^1$

素因数の和:10088

約数の個数: 32

約数和(自身を含む): 38638080

約数和(自身を除く): 17721261

約数列:

[1, 3, 7, 9, 11, 21, 27, 33, 63, 77, 99, 189, 231, 297, 693, 2079, 10061, 30183, 70427, 90549, 110671, 211281, 271647, 332013, 633843, 774697, 996039, 1901529, 2324091, 2988117, 6972273, 20916819]

約数ペア:

[(1, 20916819), (3, 6972273), (7, 2988117), (9, 2324091), (11, 1901529), (21, 996039), (27, 774697), (33, 633843), (63, 332013), (77, 271647), (99, 211281), (189, 110671), (231, 90549), (297, 70427), (693, 30183), (2079, 10061)]